Just bought a Sony Memory Stick PRO - HG Duo 8GB for my PSP to make sure I had enough memory to do what I want. The PSP reads my old SanDisk 512 MB but says there is no memory stick inserted when I use my Sony memory stick. I do not have a port on either of my laptops that are small enough to format this memory stick.

1 Answer

Have you tried to format in the PSP. Go to System in the main menu, then system settings, then format memory stick. I purchased a new chip for mine and it did not show as storage till i did this. Insert or remove chip only when unit is powered off. If it still does not work take it to the store and have it checked. Hope it helped.

Shutting the PSP down first, then inserting the memory card and powering on again worked for me. It recognized the card and told me to go and format it. After formatting, it was recognized and I'm good to go. Thanks for the insight!Shutting the PSP down first, then inserting the memory card and powering on again worked for me. It recognized the card and told me to go and format it. After formatting, it was recognized and I'm good to go. Thanks for the insight!

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Two possibilities.1. The firmware on your PSP is too old to recognise the 8GB (only recognises up to 4GB).2. If firmware is up to date you have a fake memory stick (easy way to check is to check the info for the memory stick on your PSP if its says that MAGIC GATE is unknown rather than supported then it is fake.

The fake ones typically double compress the data so that it appears to have 8GB when in reality it does not.